Kaleidoscope



H. E. HOUSE.

KALEIDOSCOPE.

APPLICATION FILED APR.13, 1920.

1,398,858. Patented Nov. 29, 1921.

UNITED STATES HERBERT E. HOUSE,

AND WARREN PATENT OFFICE.

or PASADENA, CALIFORNIA, nssienon. 'ro CLARENCE s. rorrnr. r. POTTER, BOTH or Los ANGELES, CALIFORNIA, rnn'rnnns.

KALEIIDOSGOPE.

To aZZ whom it may concern:

Be it known that I, IIERBERT E. Housn, a citizen of the United States, residing at Pasadena, county of Los An 'eles, and State of California, have invented a new and useful Kaleidoscope, of which the following is a specification.

My invention relates to kaleidoscopes.

The principal object of he invention is to provide a novel form of construction by which a perfect alinement of the mirrors as produced and by which the full effectiveness of the mirror is secured, this construction oeing at the same time low in first cost and providing a much stronger type of construction than ordinarily employed.

still further object of my invention is to provide a novel form of shutter or door for closing the object chamber.

Referring to the drawings which are for illustrative purposes only,

Figure l is a view of a kaleidoscope, portions thereof being broken away to show the internal structure.

Fig. 2 is a view of the object chamber and Fig. 3 is an end view of some.

Fig. 4 is a section on a plane represented by the line el-l of Fig. 2.

in the form of my invention shown, three mirrors 11 are employed, these mirrors bein temporarily bound together with cord members 12 and then being wrapped in a rough paper filler 13, this filler being cured by a strip of adhesive )aper 1e. The mirrors l1 inside the filler 13 are then slit. in endwise into a preformed tube 15. This ube is provided with a partition shown in .otted lines at 16 and with an cut. glass 17, "he space between the partition 16 and the loss 17 forming an object chamber 20. The less 1? is held in place by metal. ends 21 i ich are shaped as shown in F t, with '-out portions opposite the corners of the mirrors to admit light to said corers, the mirrors 11 having the position shown in relation thereto. For the purpose of giving access to the object chamber 20, i provide an opening in the wall of the object chamher, this opening being closed by a door 33 Specification of Letters Patent.

Patented Nov. 29, 1921. No. 373,556.

sliding in a line parallel to the axis of the kaleidoscope and being held in place by cleats secured to the tube 15. It is common practice at the present time to slide the mirrors 11 directly inside the tube 15. t is extremely diflicult to properly assemble the parts in this manner and b I using the filler 13, i am able to quickly assemble parts. The filler 18 is relatively inexpensive and also provides a spacer for spacing the intersecting corners of the mirrors 11 away from the tube 15 so that no image of the tube is shown atthe intersections of the mirror surfaces.

it is highly important that the mirrors be retained permanently in position and that the joints at their corners be retained so that no light is admitted. To secure this r salt, the wrapping 13 is provided, and when wound tightl about the mirrors and secured in position in the form of a cylinder it has been found to reliably maintain the mirrors in position, the cylindrical form of the wrapping insuring firm contact therewith each corner. The wrapping also permits a tight and reliable fit inside of the casing 15 y reason of the frictional engagement between the surfaces of the two cylinders and thereby insures permanent retention of the mirrors in correct position, so that no relative movement can take place be ween the mirrors and the end piece 21. This is quite important because any slipping of the mirrors would ause their corners to move away from correct position opposite the cut-out portions of the end piece, thus causin shadows which will interfere with the color effects as seen on the ground glass.

lf claim as my invention:

in a kaleidoscope, the combination of: mirrors set to form an equilateral dihedral angle; a cylindrical paper tube wound to tightly inclose said mirrors; and a tube into which said tube with its included mirrors may be forced.

in testimony whereof, I have hereunto set my hand at Los Angeles,.California, this 5th day f April, 1920.

HERBERT E. HOUSE. 

